package com.lh.java.basic.datatype;

public class TestMath {
	public static void main(String[] args) {
		System.out.println(Math.E);
		System.out.println(Math.PI);
		System.out.println(Math.cbrt(3));
		System.out.println(Math.round(-2.4));
		System.err.println(System.getenv());
	}

}
